diff --git a/misc/config_tools/launch_config/com.py b/misc/config_tools/launch_config/com.py
index b365ed904..8efeed4e9 100644
--- a/misc/config_tools/launch_config/com.py
+++ b/misc/config_tools/launch_config/com.py
@@ -98,21 +98,26 @@ def off_line_cpus(args, vmid, uos_type, config):
     print('fi', file=config)
     print("", file=config)
     print("# offline pinned vCPUs from SOS before launch UOS", file=config)
-    print("for i in `ls -d /sys/devices/system/cpu/cpu[{}]`; do".format('..'.join(pcpu_id_list)), file=config)
-    print("        online=`cat $i/online`", file=config)
-    print('        idx=`echo $i | tr -cd "[1-99]"`', file=config)
-    print("        echo cpu$idx online=$online", file=config)
-    print('        if [ "$online" = "1" ]; then', file=config)
-    print("             echo 0 > $i/online", file=config)
-    print("             online=`cat $i/online`", file=config)
-    print("             # during boot time, cpu hotplug may be disabled by pci_device_probe during a pci module insmod", file=config)
-    print('             while [ "$online" = "1" ]; do', file=config)
-    print("                     sleep 1", file=config)
-    print("                     echo 0 > $i/online", file=config)
-    print("                     online=`cat $i/online`", file=config)
-    print("             done", file=config)
-    print("             echo $idx > ${offline_path}/offline_cpu", file=config)
+    print('cpu_path="/sys/devices/system/cpu"', file=config)
+    print("for i in `ls ${cpu_path}`; do", file=config)
+    print("    for j in {}; do".format(' '.join([str(i) for i in pcpu_id_list])), file=config)
+    print('        if [ "cpu"$j = $i ]; then', file=config)
+    print('            online=`cat ${cpu_path}/$i/online`', file=config)
+    print('            idx=`echo $i | tr -cd "[1-99]"`', file=config)
+    print('            echo $i online=$online', file=config)
+    print('            if [ "$online" = "1" ]; then', file=config)
+    print("                echo 0 > ${cpu_path}/$i/online", file=config)
+    print("                online=`cat ${cpu_path}/$i/online`", file=config)
+    print("                # during boot time, cpu hotplug may be disabled by pci_device_probe during a pci module insmod", file=config)
+    print('                while [ "$online" = "1" ]; do', file=config)
+    print("                    sleep 1", file=config)
+    print("                    echo 0 > ${cpu_path}/$i/online", file=config)
+    print("                    online=`cat ${cpu_path}/$i/online`", file=config)
+    print("                done", file=config)
+    print("                echo $idx > ${offline_path}/offline_cpu", file=config)
+    print("            fi", file=config)
     print("        fi", file=config)
+    print("    done", file=config)
     print("done", file=config)
     print("", file=config)